World's Best Scientists 2026 revealed!
Akira Nishiyama

Akira Nishiyama

D-Index & Metrics

Medicine

D-Index
96
Citations
31813
World Ranking
9726
National Ranking
269

Akira Nishiyama publication distribution in Medicine in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Medicine in 2026. The highlighted bar marks where Akira Nishiyama sits on this spectrum.

101–120 publications: 5 scientists 121–140 publications: 26 scientists 141–160 publications: 73 scientists 161–180 publications: 155 scientists 181–200 publications: 230 scientists 201–220 publications: 363 scientists 221–240 publications: 487 scientists 241–260 publications: 545 scientists 261–280 publications: 722 scientists 281–300 publications: 768 scientists 301–320 publications: 834 scientists 321–340 publications: 895 scientists 341–360 publications: 922 scientists 361–380 publications: 838 scientists 381–400 publications: 861 scientists 401–420 publications: 918 scientists 421–440 publications: 806 scientists 441–460 publications: 771 scientists 461–480 publications: 751 scientists 481–500 publications: 713 scientists 501–520 publications: 617 scientists 521–540 publications: 611 scientists 541–560 publications: 537 scientists 561–580 publications: 504 scientists 581–600 publications: 509 scientists 601–620 publications: 396 scientists 621–640 publications: 386 scientists 641–660 publications: 371 scientists 661–680 publications: 340 scientists 681–700 publications: 336 scientists 701–720 publications: 307 scientists 721–740 publications: 259 scientists 741–760 publications: 230 scientists 761–780 publications: 228 scientists 781–800 publications: 217 scientists 801–820 publications: 204 scientists 821–840 publications: 186 scientists 841–860 publications: 177 scientists 861–880 publications: 155 scientists 881–900 publications: 139 scientists 901–920 publications: 145 scientists 921–940 publications: 116 scientists 941–960 publications: 133 scientists 961–980 publications: 91 scientists 981–1,000 publications: 96 scientists 1,001–1,020 publications: 77 scientists 1,021–1,040 publications: 70 scientists 1,041–1,060 publications: 63 scientists 1,061–1,080 publications: 77 scientists 1,081–1,100 publications: 49 scientists 1,101–1,120 publications: 54 scientists 1,121–1,140 publications: 49 scientists 1,141–1,160 publications: 51 scientists 1,161–1,180 publications: 35 scientists 1,181–1,200 publications: 39 scientists 1,201–1,220 publications: 26 scientists 1,221–1,240 publications: 37 scientists 1,241–1,260 publications: 36 scientists 1,261–1,280 publications: 27 scientists 1,281–1,300 publications: 32 scientists 1,301–1,320 publications: 28 scientists 1,321–1,340 publications: 17 scientists 1,341–1,360 publications: 30 scientists 1,361–1,380 publications: 28 scientists 1,381–1,400 publications: 17 scientists 1,401–1,420 publications: 21 scientists 1,421–1,440 publications: 15 scientists 1,441–1,460 publications: 12 scientists 1,461–1,480 publications: 12 scientists 1,481–1,500 publications: 18 scientists 1,501–1,520 publications: 14 scientists 1,521–1,540 publications: 17 scientists 1,541–1,560 publications: 15 scientists 1,561–1,580 publications: 6 scientists 1,581–1,600 publications: 2 scientists 1,601–1,620 publications: 12 scientists 1,621–1,640 publications: 11 scientists 1,641–1,660 publications: 8 scientists 1,661–1,680 publications: 5 scientists 1,681–1,700 publications: 5 scientists 1,701–1,720 publications: 10 scientists 1,721–1,740 publications: 12 scientists 1,741–1,760 publications: 14 scientists 1,761–1,780 publications: 6 scientists 1,781–1,795 publications: 5 scientists 1,796+ publications: 100 scientists
101 publications 1,796+

This scientist: 685 publications — 80th percentile

80% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,796 publications or more.

Akira Nishiyama D-index placement in Medicine in 2026

The chart shows the D-index (discipline H-index) distribution of Medicine scientists ranked by Research.com in 2026. The highlighted bar marks where Akira Nishiyama sits on this spectrum.

70–71 D-Index: 226 scientists 72–73 D-Index: 391 scientists 74–75 D-Index: 574 scientists 76–77 D-Index: 730 scientists 78–79 D-Index: 891 scientists 80–81 D-Index: 972 scientists 82–83 D-Index: 1,027 scientists 84–85 D-Index: 1,003 scientists 86–87 D-Index: 960 scientists 88–89 D-Index: 970 scientists 90–91 D-Index: 922 scientists 92–93 D-Index: 839 scientists 94–95 D-Index: 808 scientists 96–97 D-Index: 779 scientists 98–99 D-Index: 668 scientists 100–101 D-Index: 611 scientists 102–103 D-Index: 630 scientists 104–105 D-Index: 513 scientists 106–107 D-Index: 541 scientists 108–109 D-Index: 445 scientists 110–111 D-Index: 429 scientists 112–113 D-Index: 400 scientists 114–115 D-Index: 393 scientists 116–117 D-Index: 318 scientists 118–119 D-Index: 302 scientists 120–121 D-Index: 287 scientists 122–123 D-Index: 255 scientists 124–125 D-Index: 256 scientists 126–127 D-Index: 252 scientists 128–129 D-Index: 230 scientists 130–131 D-Index: 179 scientists 132–133 D-Index: 168 scientists 134–135 D-Index: 163 scientists 136–137 D-Index: 159 scientists 138–139 D-Index: 134 scientists 140–141 D-Index: 134 scientists 142–143 D-Index: 118 scientists 144–145 D-Index: 109 scientists 146–147 D-Index: 106 scientists 148–149 D-Index: 74 scientists 150–151 D-Index: 79 scientists 152–153 D-Index: 80 scientists 154–155 D-Index: 87 scientists 156–157 D-Index: 57 scientists 158–159 D-Index: 74 scientists 160–161 D-Index: 69 scientists 162–163 D-Index: 60 scientists 164–165 D-Index: 53 scientists 166–167 D-Index: 39 scientists 168–169 D-Index: 42 scientists 170–171 D-Index: 32 scientists 172–173 D-Index: 39 scientists 174–175 D-Index: 40 scientists 176–177 D-Index: 28 scientists 178–179 D-Index: 19 scientists 180–181 D-Index: 23 scientists 182–183 D-Index: 31 scientists 184–185 D-Index: 18 scientists 186–187 D-Index: 20 scientists 188–189 D-Index: 22 scientists 190–191 D-Index: 13 scientists 192–193 D-Index: 21 scientists 194–195 D-Index: 12 scientists 196–197 D-Index: 12 scientists 198–199 D-Index: 14 scientists 200–201 D-Index: 15 scientists 202–203 D-Index: 13 scientists 204–205 D-Index: 10 scientists 206–207 D-Index: 8 scientists 208–209 D-Index: 4 scientists 210–211 D-Index: 12 scientists 212–213 D-Index: 11 scientists 214–215 D-Index: 10 scientists 216 D-Index: 4 scientists 217+ D-Index: 98 scientists
70 D-Index 217+

This scientist: 96 D-Index — 53rd percentile

53% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 217 D-Index or more.

Overview

Akira Nishiyama is affiliated with Kagawa University in Japan and is primarily engaged in medical research. Their work has produced at least 421 publications within the field of Medicine, with a particular focus on subfields that include Cardiology and Cardiovascular Medicine, Molecular Biology, Endocrinology, Diabetes and Metabolism, Physiology, and Surgery.

The scientist's research topics cover a range of issues related to hormonal regulation and hypertension, blood pressure and hypertension studies, sodium intake and health, diet and metabolism, pancreatic function and diabetes, diabetes treatment and management, and the intersections of diet, metabolism, and disease.

Nishiyama has contributed to numerous scientific publications, including papers such as:

  • "Hypertension and related diseases in the era of COVID-19: a report from the Japanese Society of Hypertension Task Force on COVID-19," 2020, Hypertension Research
  • "Astrocytic phagocytosis is a compensatory mechanism for microglial dysfunction," 2020, The EMBO Journal
  • "Organ protection by SGLT2 inhibitors: role of metabolic energy and water conservation," 2020, Nature Reviews Nephrology
  • "Kidney Outcomes Associated With SGLT2 Inhibitors Versus Other Glucose-Lowering Drugs in Real-world Clinical Practice: The Japan Chronic Kidney Disease Database," 2021, Diabetes Care
  • "New Concept of Onco-Hypertension and Future Perspectives," 2020, Hypertension

The scientist regularly collaborates with fellow researchers. Frequent co-authors include Daisuke Nakano, Yuichiro Yano, Koichi Node, Kento Kitada, and Asadur Rahman.

Their research has been published extensively in specialized venues such as Hypertension Research, Journal of Hypertension, Proceedings for Annual Meeting of The Japanese Pharmacological Society, Hypertension, and Scientific Reports.

Best Publications

  • The Intrarenal Renin-Angiotensin System: From Physiology to the Pathobiology of Hypertension and Kidney Disease

    Hiroyuki Kobori;Masaomi Nangaku;L. Gabriel Navar;Akira Nishiyama

  • AP-1 transcriptional activity is regulated by a direct association between thioredoxin and Ref-1

    Kiichi Hirota;Minoru Matsui;Satoshi Iwata;Akira Nishiyama

  • Identification of Thioredoxin-binding Protein-2/Vitamin D3 Up-regulated Protein 1 as a Negative Regulator of Thioredoxin Function and Expression

    Akira Nishiyama;Minoru Matsui;Satoshi Iwata;Kiichi Hirota

  • Inhibition of diabetic nephropathy by a decoy peptide corresponding to the “handle” region for nonproteolytic activation of prorenin

    Atsuhiro Ichihara;Matsuhiko Hayashi;Yuki Kaneshiro;Fumiaki Suzuki

  • Overexpression of thioredoxin in transgenic mice attenuates focal ischemic brain damage.

    Yasushi Takagi;Akira Mitsui;Akira Nishiyama;Kazuhiko Nozaki

  • Regulation of Intrarenal Angiotensin II in Hypertension

    L. Gabriel Navar;Lisa M. Harrison-Bernard;Akira Nishiyama;Hiroyuki Kobori

  • Zscan4 regulates telomere elongation and genomic stability in ES cells

    Michal Zalzman;Geppino Falco;Lioudmila V. Sharova;Akira Nishiyama

  • Possible Contributions of Reactive Oxygen Species and Mitogen-Activated Protein Kinase to Renal Injury in Aldosterone/Salt-Induced Hypertensive Rats

    Akira Nishiyama;Li Yao;Yukiko Nagai;Kayoko Miyata

  • Thioredoxin-2 (TRX-2) is an essential gene regulating mitochondria-dependent apoptosis.

    Toru Tanaka;Fumihito Hosoi;Yuko Yamaguchi-Iwai;Hajime Nakamura

  • Role of NAD(P)H Oxidase- and Mitochondria-Derived Reactive Oxygen Species in Cardioprotection of Ischemic Reperfusion Injury by Angiotensin II

    Shoji Kimura;Guo-Xing Zhang;Akira Nishiyama;Takatomi Shokoji

  • Brd4 Marks Select Genes on Mitotic Chromatin and Directs Postmitotic Transcription

    Anup Dey;Akira Nishiyama;Tatiana Karpova;James McNally

  • Prorenin receptor blockade inhibits development of glomerulosclerosis in diabetic angiotensin II type 1a receptor-deficient mice.

    Atsuhiro Ichihara;Fumiaki Suzuki;Tsutomu Nakagawa;Yuki Kaneshiro

  • Cardiac oxidative stress in acute and chronic isoproterenol-infused rats.

    Guo-Xing Zhang;Shoji Kimura;Akira Nishiyama;Takatomi Shokoji

  • Renal Interstitial Fluid Concentrations of Angiotensins I and II in Anesthetized Rats

    Akira Nishiyama;Dale M. Seth;L. Gabriel Navar

  • Slowly Progressive, Angiotensin II–Independent Glomerulosclerosis in Human (Pro)renin Receptor–Transgenic Rats

    Yuki Kaneshiro;Atsuhiro Ichihara;Mariyo Sakoda;Tomoko Takemitsu

  • Nonproteolytic activation of prorenin contributes to development of cardiac fibrosis in genetic hypertension

    Atsuhiro Ichihara;Yuki Kaneshiro;Tomoko Takemitsu;Mariyo Sakoda

  • Aldosterone Stimulates Reactive Oxygen Species Production through Activation of NADPH Oxidase in Rat Mesangial Cells

    Kayoko Miyata;Matlubur Rahman;Takatomi Shokoji;Yukiko Nagai

  • Mitochondria-Derived Reactive Oxygen Species and Vascular MAP Kinases. Comparison of Angiotensin II and Diazoxide

    Shoji Kimura;Guo-Xing Zhang;Akira Nishiyama;Takatomi Shokoji

  • Enhancement of Intrarenal Angiotensinogen in Dahl Salt-Sensitive Rats on High Salt Diet

    Hiroyuki Kobori;Akira Nishiyama;Youichi Abe;L. Gabriel Navar

  • The Bromodomain Protein Brd4 Stimulates G1 Gene Transcription and Promotes Progression to S Phase

    Kazuki Mochizuki;Akira Nishiyama;Moon Kyoo Jang;Anup Dey

Frequent Co-Authors

Hiroyuki Kobori
Hiroyuki Kobori International University of Health and Welfare
Tomohiko Tamura
Tomohiko Tamura Yokohama City University
Keiko Ozato
Keiko Ozato Eunice Kennedy Shriver National Institute of Child Health and Human Development
Junji Yodoi
Junji Yodoi Kyoto University
L. Gabriel Navar
L. Gabriel Navar Tulane University
Hiroshi Masutani
Hiroshi Masutani Tenri Health Care University
Hiroshi Itoh
Hiroshi Itoh Keio University
Minoru S.H. Ko
Minoru S.H. Ko Keio University
Sadayoshi Ito
Sadayoshi Ito Tohoku University
Hajime Nakamura
Hajime Nakamura Kyoto University

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